9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

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Answer 1

Hidden content!
#include<stdio.h>

int main()
{
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}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
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 **  * ***  *    ***  **   *  * * second_number;
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}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
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return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
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**    * (){
 *    * *
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*****  **
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*  * 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
      *  ***    *  * *
int   * *
{
*  **  *****  * a,b,swap;
**    * **  * *     ** * **** *  * 
******* * * * *   *  *** **** *
swap=a;
a=b;
b=swap;
  ** * * *** **  **   ** a);
       * ** * *       * 
 **    *     *******   0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
  * *    *  * *  
main()
{
 *   *    * **  ** 
           * *  *    *  * *   
  *  **** **     *  **
swap=a;
a=b;
b=swap;
** ****   * *  ***  *** **  a);
 ** *   * * *  **** *
  * * **    *   *  0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
   **  ***** *    * 
 int main(){
int a,b;

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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
**  * ** * *   **      
 ** *  * main(){
int a,b;

** * * *** ** ** **** *** *** ** * **    *      * ** **   *   * *    ***  

** ******* **   *      ** *   * *   **  *  *  

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
* *** *  *  ***  *  *  * 
  *  **** * ***** * * *   x,y,temp;
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* ** ***** ** **  *  **   **  = x;
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* *  **  **  * *****    * = temp;
*  **** * *  **  *    
*  *** * ***  **    ***** *   ***** *** ***** ****  *** x,y);
  ** * * * *      *       
 ** *  * **    * ** ***  *  * * **** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output